CN113049708B - Flame-proof analysis device based on chromatographic principle - Google Patents
Flame-proof analysis device based on chromatographic principle Download PDFInfo
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- CN113049708B CN113049708B CN202110300872.XA CN202110300872A CN113049708B CN 113049708 B CN113049708 B CN 113049708B CN 202110300872 A CN202110300872 A CN 202110300872A CN 113049708 B CN113049708 B CN 113049708B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/60—Construction of the column
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/60—Construction of the column
- G01N30/6052—Construction of the column body
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/62—Detectors specially adapted therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N2030/022—Column chromatography characterised by the kind of separation mechanism
- G01N2030/025—Gas chromatography
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
- G01N2030/326—Control of physical parameters of the fluid carrier of pressure or speed pumps
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
- G01N2030/328—Control of physical parameters of the fluid carrier of pressure or speed valves, e.g. check valves of pumps
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Abstract
The invention discloses a flame-proof analysis device based on a chromatographic principle, which comprises: computer module, circuit cavity and gas circuit cavity that keep apart. The circuit cavity is internally provided with: the device comprises a chromatograph main circuit module in communication connection with the computer module and a power supply module for supplying power to the chromatograph main circuit module. The gas circuit cavity is internally provided with: the device comprises a chromatographic analysis module, and a carrier gas introduction mechanism, a sample gas introduction mechanism and a standard gas introduction mechanism which are respectively connected with the chromatographic analysis module. The flame-proof analysis device further comprises a plurality of connecting terminals, and the chromatographic analysis module is electrically connected with the chromatograph main circuit module through the corresponding connecting terminals. The gas path part and the circuit part of the chromatographic analysis are arranged in a cavity-separated mode, the gas path and the circuit are separated in space, the situation that the gas leaks and contacts with the circuit spark to cause explosion due to the mixed arrangement is avoided, and the safety of the gas chromatographic analysis device used in dangerous places is effectively improved.
Description
Technical Field
The invention relates to the field of gas chromatographs, in particular to an explosion-proof analysis device based on a chromatographic principle.
Background
The gas chromatograph has the advantages of high separation efficiency, high analysis speed, high detection sensitivity, good selectivity, simultaneous analysis of multiple components and the like, and is widely applied to the aspects of medicine and health, petrochemical industry, environmental monitoring, coal mine safety and the like. Especially in industrial environment and continuous on-line use of coal mine underground gas, dangerous gas needs to be injected into a gas chromatograph continuously for analysis, and if the dangerous gas leaks and a circuit generates sparks, the instrument has explosion danger.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an explosion-proof analysis device based on the chromatographic principle, which can prevent dangerous gas from contacting a circuit to cause explosion.
The invention discloses a flame-proof analysis device based on a chromatographic principle, which comprises: computer module, circuit cavity and the gas circuit cavity of keeping apart, wherein, be equipped with in the circuit cavity:
the chromatograph main circuit module is in communication connection with the computer module, and the power supply module is used for supplying power to the chromatograph main circuit module;
the gas circuit cavity is internally provided with: the device comprises a chromatographic analysis module, a carrier gas introducing mechanism, a sample gas introducing mechanism and a standard gas introducing mechanism, wherein the carrier gas introducing mechanism, the sample gas introducing mechanism and the standard gas introducing mechanism are respectively connected with the chromatographic analysis module;
the flame-proof analysis device further comprises a plurality of connecting terminals, and the chromatographic analysis module is electrically connected with the chromatograph main circuit module through the corresponding connecting terminals.
Further, the flameproof analysis device further comprises: the circuit cavity and the gas circuit cavity are isolated by the isolating piece;
set up in the binding post of separator includes:
the chromatographic main circuit module is electrically connected with the corresponding electric cavity connecting end;
and the chromatographic analysis module is electrically connected with the corresponding connecting end of the air cavity.
Further, the chromatographic analysis module comprises a main circuit module and a chromatographic instrument main circuit module, wherein the main circuit module is respectively electrically connected with the chromatograph: gas detection ware, chromatographic column, sampling device respectively with carrier gas guiding mechanism standard gas guiding mechanism with sample gas guiding mechanism UNICOM for leading-in gas can pass through in proper order sampling device the chromatographic column gas detection ware.
Further, the chromatographic column comprises a chromatographic column heating plate, a chromatographic column and a chromatographic column temperature sensor; the chromatographic column heating plate and the chromatographic column temperature sensor are electrically connected with the chromatograph main circuit module through the wiring terminal.
Further, still be equipped with a plurality of signal lines that have signal isolation module in the circuit cavity, the both ends of signal line respectively with correspond binding post with chromatograph main circuit module connects, makes chromatographic column temperature sensor the sampling device gas detector through corresponding the signal line with chromatograph main circuit module communication connection.
Further, still be equipped with a plurality of power lines in the electric cavity, the both ends of power line respectively with correspond binding post with chromatograph main circuit module connects, makes chromatograph main circuit module can do gas detector chromatograph column heating plate the sampling device power supply.
Further, the carrier gas introduction mechanism includes: the two ends of the carrier gas inlet pipe are respectively connected with the sample injection device and the carrier gas inlet arranged on the cavity wall of the gas circuit cavity;
the standard gas introduction mechanism includes: the standard gas inlet and the standard gas leading-in pipe are respectively connected with the sample injection device and the standard gas leading-in port arranged on the cavity wall of the gas circuit cavity;
the sample gas introduction mechanism includes: the sample gas inlet pipe is connected with the sample introduction device, and the sample gas inlet ports are respectively connected with the sample gas inlet pipe;
the sample gas inlet pipe is provided with an air pump electrically connected with the chromatograph main circuit module, so that sample gas is introduced into the chromatographic analysis module through the sample gas inlet pipe under the action of the air pump.
Furthermore, each sample gas introduction port is respectively provided with an electromagnetic valve for controlling opening and closing, a control panel is arranged in the circuit cavity, the electromagnetic valves are electrically connected with the control panel through connecting the corresponding wiring terminals, and the control panel is also electrically connected with the computer module.
Furthermore, a communication board is arranged in the circuit cavity and is respectively connected with the computer module, the chromatograph main circuit module and the control board.
Further, the power module comprises a transformer, a power switch and an intrinsically safe power supply which are sequentially connected, and the intrinsically safe power supply is connected with the chromatograph main circuit module;
or the power module comprises a transformer and an intrinsic safety power supply which are connected, and the intrinsic safety power supply is connected with the chromatograph main circuit module.
The invention has at least the following beneficial effects:
the gas path part and the circuit part of the chromatographic analysis are arranged in a cavity-separated mode, the gas path and the circuit are separated in space, the situation that the gas leaks and contacts with the circuit spark to cause explosion due to the mixed arrangement is avoided, and the safety of the gas chromatographic analysis device used in dangerous places is effectively improved.
In addition, the invention is also provided with a plurality of connecting terminals, realizes stable circuit connection under the condition of ensuring gas-electric isolation, and is convenient to disassemble and refit on the structure so as to adapt to various types of chromatographic analysis tests.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic circuit diagram of an explosion suppression analysis device based on a chromatographic principle, which is disclosed by the embodiment of the invention.
Fig. 2 is a schematic circuit diagram of a power module of an explosion suppression analysis device based on a chromatographic principle, which is disclosed by the embodiment of the invention.
Fig. 3 is a schematic circuit diagram of another power module of the flameproof analysis device based on the chromatographic principle disclosed in the embodiment of the present invention.
The device comprises a circuit cavity, a gas path cavity, 100 input power supply, 101 power supply module, 1011 transformer, 1012 switch power supply, 1013 intrinsic safety power supply, 102 chromatograph main circuit module, 103 computer module, 104 communication board, 105 control board, 106 wiring terminal, 107 air pump, 200 carrier gas inlet, 201 standard gas inlet, 202 sample gas inlet, 203 solenoid valve, 204 gas detector, 205 chromatographic column heating piece, 206 chromatographic column, 207 chromatographic column temperature sensor, 208 sample injection device and 3 isolator, wherein the device comprises a circuit cavity, a 2 gas path cavity, 100 input power supply, 101 power supply module, 1011 transformer, 1012 switch power supply, 1013 intrinsic safety power supply, 102 chromatograph main circuit module, 103 computer module, 104 communication board, 105 control board, 106 wiring terminal, 107 air pump, 200 carrier gas inlet, 201 standard gas inlet, 202 sample gas inlet, 203 solenoid valve, 204 gas detector, 205 chromatographic column heating piece, 206 chromatographic column, 207 chromatographic column temperature sensor, 208 sample injection device and 3 isolator.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The invention discloses a flame-proof analysis device based on a chromatographic principle, which comprises: the present invention relates to a computer module 103, and a circuit chamber 1 and a circuit chamber 2 which are separated from each other, wherein the computer module 103 can adopt the existing computer device/equipment, and has the corresponding functions of data processing, storage, instruction sending, etc., and the specific structure and principle of the present invention are not described in detail. The circuit cavity 1 and the gas circuit cavity 2 are isolated in space, so that gas in the two cavities can not be communicated, once the gas circuit cavity 2 leaks, dangerous gas can not enter the circuit cavity 1 to cause explosion.
The circuit cavity 1 is internally provided with: a chromatograph main circuit module 102 connected with the computer module 103 in communication, and a power supply module 101 for supplying power to the chromatograph main circuit module 102. The main circuit module 102 of the chromatograph may include a processor of an existing model, and is implemented by a circuit structure of the circuit board 102 of the chromatograph, the module can receive an instruction sent by the computer module 103 and execute a corresponding operation according to the instruction, the module can also receive a detection signal sent by each detector/sensor of the gas circuit cavity 2 and process the detection signal to obtain corresponding detection information, and is used for controlling a connected load to complete a corresponding operation, and the obtained detection information can be stored locally and also uploaded to the computer module 103 for further analysis and storage.
The gas circuit cavity 2 is internally provided with: the device comprises a chromatographic analysis module, and a carrier gas introduction mechanism, a sample gas introduction mechanism and a standard gas introduction mechanism which are respectively connected with the chromatographic analysis module. The chromatographic analysis module can adopt various sensors/detectors/loads of the existing explosion-proof analysis device, such as a gas detector, a temperature sensor, a heating sheet and the like, and can realize the detection of the introduced gas based on the chromatographic principle. The three gas introduction mechanisms can introduce carrier gas, standard gas and sample gas required by explosion-proof analysis detection into the chromatographic analysis module, and the specific structure of the gas introduction mechanism can adopt a commonly used gas guide structure at present or can adopt a gas guide structure disclosed in each embodiment in the invention. Because the gas circuit cavity 2 and the circuit cavity 1 are isolated from each other in space, once the chromatographic analysis module or each gas introduction structure leaks, the dangerous gas cannot contact the chromatographic analysis module and the chromatograph main circuit module 102 related to the circuit structure, so that explosion cannot be caused even if the circuit structure generates electric sparks, the damage of the device is avoided, and the normal operation of explosion-proof analysis and detection is ensured. Preferably, besides being isolated from the circuit cavity 1, the air passage cavity 2 may be a closed cavity, which is used to prevent hazardous gas from leaking out of the cavity, and avoid air pollution and explosion after contacting other objects.
Because the gas circuit cavity 2 and the circuit cavity 1 are isolated from each other, it is difficult to electrically connect the circuit connection structure including the chromatograph main circuit module 102 and the chromatograph analysis module by using the existing direct connection method of wires, so the invention also discloses a plurality of terminals 106 for connecting electronic components/devices between two cavities, each of which can realize the connection of one wire, specifically, two ends of the terminals 106 can be respectively connected with the chromatograph analysis module and the wires led out from the chromatograph main circuit module 102, that is, the chromatograph analysis module is electrically connected with the chromatograph main circuit module 102 through a plurality of corresponding terminals 106, so as to achieve the purposes of signal transmission, power supply and the like. In some embodiments, the connection terminals 106 may be disposed in the gas path cavity 2, the main circuit module 102 of the chromatograph may draw a wire into the gas path cavity 2 and connect with the corresponding connection terminal 106, and further, to avoid electric sparks generated between the connection terminal 106 and the connected wire, it is preferable to dispose each connection terminal 106 in the circuit cavity 1 or a space outside the two cavities, and the wire connected to the electronic components/devices such as the chromatographic analysis module is drawn out of the gas path cavity 2 and connected with the corresponding connection terminal 106.
In some embodiments of the present invention, the flameproof analysis device further includes: and the circuit cavity 1 and the gas circuit cavity 2 are isolated through the isolating piece 3, as shown in fig. 1, an isolation room can be an isolation plate, and the isolation plate is a common cavity wall of the gas circuit cavity 2 and the circuit cavity 1. Structurally, the circuit cavity 1 and the gas circuit cavity 2 can be obtained by arranging the partition board in a relatively closed space, and the integral structure of the explosion-proof analysis device is simplified by the arrangement of the partition 3. Preferably, the isolation plate is detachably mounted between the air path cavity 2 and the circuit cavity 1.
In some embodiments of the present invention, the connection terminals 106 are disposed on the isolation board, two ends of the connection terminals 106 are an electrical cavity connection end and an air cavity connection end, respectively, the electrical cavity connection end and the air cavity connection end are located on two sides of the isolation board, specifically, the electrical cavity connection end is located in the circuit cavity 1, and the chromatographic main circuit module is electrically connected to the corresponding electrical cavity connection end; the air cavity connecting end is positioned in the air circuit cavity 2, and the chromatographic analysis module is electrically connected with the corresponding air cavity connecting end. Although the wires cannot pass directly through the isolation plate, the wires in the two cavities pass through the two ends of the connecting terminal 106, so that the electric power/signals are transmitted through the connecting terminal 106. Each terminal 106 is fixedly disposed on the partition 3, which not only realizes the transmission of electrical signals of the two separated cavity members, but also structurally facilitates the mounting and dismounting of electronic components/devices.
In some embodiments of the present invention, the chromatography module comprises, electrically connected to the chromatograph main circuit module 102: the gas detector 204, the chromatographic column 206 and the sample introduction device 208 are respectively communicated with the carrier gas introduction mechanism, the standard gas introduction mechanism and the sample gas introduction mechanism, so that the introduced gas can sequentially pass through the sample introduction device 208, the chromatographic column 206 and the gas detector 204, as shown in fig. 1.
The chromatographic column 206 comprises a chromatographic column heating plate 205, a chromatographic column 206 and a chromatographic column temperature sensor 207, wherein the chromatographic column heating plate 205 and the chromatographic column temperature sensor 207 are electrically connected with the chromatograph main circuit module 102 through the connection terminal 106. The principles of chromatographic analysis applied to the present invention are known in the art and will not be described in detail herein.
In some embodiments of the present invention, the wires electrically connected through each of the terminals 106 may be functionally divided into signal lines for transmitting signals and power lines for causing the chromatograph main circuit to supply power to each of the detectors and loads.
Specifically, a plurality of signal lines with signal isolation modules are further arranged in the circuit cavity 1, and two ends of each signal line are respectively connected with the corresponding connecting terminal 106 and the chromatograph main circuit module 102, so that the chromatographic column temperature sensor 207, the sample injection device 208 and the gas detector 204 are in communication connection with the chromatograph main circuit module 102 through the corresponding signal lines. A plurality of power lines are further arranged in the electric cavity, two ends of each power line are respectively connected with the corresponding connecting terminal 106 and the chromatograph main circuit module 102, so that the chromatograph main circuit module 102 can supply power to the gas detector 204, the chromatographic column heating plate 205 and the sample injection device 208, and preferably, the power supply voltage for supplying power to the chromatograph main circuit module 102 is 5-36V direct current.
In some embodiments of the present invention, the carrier gas introduction mechanism comprises: a carrier gas inlet 200 and a carrier gas inlet pipe, wherein both ends of the carrier gas inlet pipe are respectively connected with the sample injection device 208 and the carrier gas inlet 200 arranged on the cavity wall of the gas circuit cavity 2. The standard gas introduction mechanism includes: the gas circuit comprises a standard gas inlet and a standard gas inlet pipe, wherein two ends of the standard gas inlet pipe are respectively connected with the sample injection device 208 and the standard gas inlet 201 arranged on the cavity wall of the gas circuit cavity 2. The sample gas introduction mechanism includes: a sample gas inlet pipe connected with the sample introduction device 208, and a plurality of sample gas inlet ports 202 respectively connected with the sample gas inlet pipe.
Preferably, the present invention further comprises a suction pump 107 electrically connected to the chromatograph main circuit module 102, wherein the suction pump 107 acts on the sample gas inlet tube, so that the sample gas is introduced into the chromatographic analysis module through the sample gas inlet tube under the action of the suction pump 107.
In some embodiments of the present invention, an electromagnetic valve set is disposed at the sample gas introduction port 202, that is, each sample gas introduction port 202 is respectively provided with an electromagnetic valve 203 for controlling opening and closing, a control board 105 is disposed in the circuit cavity 1, the electromagnetic valve 203 is electrically connected to the control board 105 by connecting the corresponding connection terminal 106, the control board 105 is further electrically connected to the computer module 103, and the control board 105 may be provided with a data processing circuit such as a single chip microcomputer, and can receive and process a control instruction sent by the computer module 103. When the sample gas needs to be introduced, a control instruction is sent to the control board 105 through the computer module 103 according to the requirement, and the control board 105 can accurately control the opening and closing of each sample gas introduction port 202 according to the instruction.
In some embodiments of the present invention, a communication board 104 is further disposed in the circuit chamber 1, and the communication board 104 is respectively connected to the computer module 103, the chromatograph main circuit module 102, and the control board 105. Preferably, the communication board 104 can use the existing wireless communication circuit to realize the wireless communication with the computer module 103, and the detailed principle is not described in detail herein.
In some embodiments of the present invention, as shown in fig. 2, the power module 101 includes a transformer 1011, a switching power supply 1012, and an intrinsically safe power supply 1013 connected in sequence, where the intrinsically safe power supply 1013 is connected to the chromatograph main circuit module 102. Alternatively, as shown in fig. 3, the power module 101 includes a transformer 1011 and an intrinsically safe power source 1013 connected to each other, and the intrinsically safe power source 1013 is connected to the chromatograph main circuit module 102. The power module 101 is connected with an external power supply, preferably, the input voltage of the power module 101 is 127V to 1140V for alternating current, and the output voltage is 5V to 36V for direct current.
The invention discloses an explosion-proof analysis device based on the chromatographic principle, wherein one preferable use process is as follows:
(1) The carrier gas is opened, and passes through the carrier gas introduction port 200, and passes through the sample introduction device 208, the column 206, and the gas detector 204 in this order.
(2) Power is turned on and delivered to the power module 101 by the input power 100.
(3) The chromatograph temperature value is set in the computer module 103, and the communication board 104 transmits the parameter to the chromatograph main circuit module 102, which can control the column heating sheet 205 to heat according to the difference between the detected value of the column temperature sensor 207 and the set value.
(4) In the operation process, the computer module 103 opens one path of electromagnetic valve 203 in the electromagnetic valve group through the control panel 105, the chromatograph main circuit module 102 starts the air pump 107, the air pump 107 sends the sample gas into the sample injection device 208, and the carrier gas drives the sample gas in the sample injection device 208 to sequentially pass through the chromatographic column 206 and the gas detector 204, so that gas separation detection is realized.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (2)
1. The utility model provides a flame proof analytical equipment based on chromatogram principle which characterized in that includes: computer module, circuit cavity and the gas circuit cavity of keeping apart, wherein, be equipped with in the circuit cavity:
the main circuit module of the chromatograph is in communication connection with the computer module, and the power supply module is used for supplying power to the main circuit module of the chromatograph;
the gas circuit cavity is internally provided with: the device comprises a chromatographic analysis module, a carrier gas introducing mechanism, a sample gas introducing mechanism and a standard gas introducing mechanism, wherein the carrier gas introducing mechanism, the sample gas introducing mechanism and the standard gas introducing mechanism are respectively connected with the chromatographic analysis module;
the flame-proof analysis device also comprises a plurality of connecting terminals, and the chromatographic analysis module is electrically connected with the chromatograph main circuit module through the corresponding connecting terminals;
the flame-proof analysis device further comprises: the circuit cavity and the gas circuit cavity are isolated by the isolating piece;
set up in the binding post of separator includes:
the chromatograph main circuit module is electrically connected with the corresponding electric cavity connecting end;
the chromatographic analysis module is electrically connected with the corresponding air cavity connecting end;
the chromatographic analysis module comprises a chromatographic instrument main circuit module which is respectively and electrically connected with the chromatograph main circuit module: the sample introduction device is respectively communicated with the carrier gas introduction mechanism, the standard gas introduction mechanism and the sample gas introduction mechanism, so that introduced gas can sequentially pass through the sample introduction device, the chromatographic column and the gas detector;
the chromatographic column comprises a chromatographic column heating plate, a chromatographic column and a chromatographic column temperature sensor; the chromatographic column heating plate and the chromatographic column temperature sensor are electrically connected with the chromatograph main circuit module through the wiring terminal;
a plurality of signal wires with signal isolation modules are further arranged in the circuit cavity, and two ends of each signal wire are respectively connected with the corresponding wiring terminal and the chromatograph main circuit module, so that the chromatographic column temperature sensor, the sample injection device and the gas detector are in communication connection with the chromatograph main circuit module through the corresponding signal wires;
a plurality of power lines are further arranged in the electric cavity, and two ends of each power line are respectively connected with the corresponding connecting terminal and the chromatograph main circuit module, so that the chromatograph main circuit module can supply power to the gas detector, the chromatographic column heating plate and the sample injection device;
the carrier gas introducing mechanism includes: the two ends of the carrier gas inlet pipe are respectively connected with the sample injection device and the carrier gas inlet arranged on the cavity wall of the gas circuit cavity;
the standard gas introduction mechanism includes: the standard gas inlet is arranged on the wall of the gas circuit cavity, and the two ends of the standard gas inlet are respectively connected with the sample injection device and the standard gas inlet arranged on the wall of the gas circuit cavity;
the sample gas introduction mechanism includes: the sample gas inlet pipe is connected with the sample introduction device, and the sample gas inlet ports are respectively connected with the sample gas inlet pipe;
the sample gas inlet pipe is provided with an air pump electrically connected with the chromatograph main circuit module, so that sample gas is introduced into the chromatographic analysis module through the sample gas inlet pipe under the action of the air pump;
each sample gas inlet is provided with an electromagnetic valve for controlling opening and closing, a control panel is arranged in the circuit cavity, the electromagnetic valves are electrically connected with the control panel through connecting corresponding wiring terminals, and the control panel is also electrically connected with the computer module;
and a communication board is arranged in the circuit cavity and is respectively connected with the computer module, the chromatograph main circuit module and the control panel.
2. The flame-proof analysis device based on the chromatographic principle of claim 1, wherein the power module comprises a transformer, a power switch and an intrinsically safe power supply which are sequentially connected, and the intrinsically safe power supply is connected with the main circuit module of the chromatograph;
or the power module comprises a transformer and an intrinsic safety power supply which are connected, and the intrinsic safety power supply is connected with the chromatograph main circuit module.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110300872.XA CN113049708B (en) | 2021-03-22 | 2021-03-22 | Flame-proof analysis device based on chromatographic principle |
| US17/558,308 US20220299487A1 (en) | 2021-03-22 | 2021-12-21 | Flame proof analysis device based on chromatography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110300872.XA CN113049708B (en) | 2021-03-22 | 2021-03-22 | Flame-proof analysis device based on chromatographic principle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113049708A CN113049708A (en) | 2021-06-29 |
| CN113049708B true CN113049708B (en) | 2023-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110300872.XA Active CN113049708B (en) | 2021-03-22 | 2021-03-22 | Flame-proof analysis device based on chromatographic principle |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20220299487A1 (en) |
| CN (1) | CN113049708B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640441A (en) * | 2021-08-26 | 2021-11-12 | 珠海鼎正国信科技有限公司 | Microfluidic chromatographic separation system and separation method thereof |
| CN115441692A (en) * | 2022-08-26 | 2022-12-06 | 中煤科工集团沈阳研究院有限公司 | Power supply method of intrinsically safe gas chromatograph |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1111442A (en) * | 1964-07-15 | 1968-04-24 | British Petroleum Co | Improvements in or relating to chromatographic equipment |
| CN101300486B (en) * | 2005-09-02 | 2013-07-24 | Abb公司 | Modular gas chromatograph |
| CN202678741U (en) * | 2012-05-11 | 2013-01-16 | 中煤电气有限公司 | Explosion-proof type uninterrupted large-capacity power supply and explosion suppression cavity thereof |
| CN107843681A (en) * | 2017-12-19 | 2018-03-27 | 上海神开石油科技有限公司 | A kind of explosion-proof chromatograph of well head |
| CN109358565A (en) * | 2018-10-16 | 2019-02-19 | 尤洛卡（山东）矿业科技有限公司 | A kind of mining integrated feed flow control device |
-
2021
- 2021-03-22 CN CN202110300872.XA patent/CN113049708B/en active Active
- 2021-12-21 US US17/558,308 patent/US20220299487A1/en not_active Abandoned
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| Publication number | Publication date |
|---|---|
| CN113049708A (en) | 2021-06-29 |
| US20220299487A1 (en) | 2022-09-22 |
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